基于教室监控视频的课堂行为计数分析  

Behavior analysis and counting based class surveillance video

作　　者：欧温暖[1,2] 田绪红[2] 朱同林[1,2] 

机构地区：[1]华南农业大学农业多媒体技术研究所,广东广州510642 [2]华南农业大学信息学院,广东广州510642

出　　处：《图学学报》2012年第2期113-118,共6页Journal of Graphics

基　　金：国家自然科学基金资助项目(30971694);中山大学广东省计算科学重点实验室开放基金项目(201106001);广东省产学研科技攻关课题资助项目(2010B090400493)

摘　　要：针对静止单摄像头拍摄的课室监控视频,论文提出了一种基于视频分析的课堂行为统计方法。实验首先进行简单的视频图像分割并对分割结果进行运动目标跟踪;然后通过对跟踪目标和监控区域的位置状态信息进行建模,给出了4种不同的位移模型;最后根据位移模型实现对在课堂上进出监控区域的人数进行统计。该方法简单实用,不仅能取得较为满意的实验结果,而且具有一定的鲁棒性。实验结果对学校相关部门及时了解并掌握课堂教学情况具有一定的实用价值。Based on the static single-camera surveillance video,this paper proposes a video analysis based on statistical methods of classroom behavior.Firstly,video sequences are segmentalized and moving targets are tracked.Then,by tracking the location of the target and monitor status information for the regional model,four different displacement models are presented.Finally,the displacement model is used to achieve the number of behavior in or out of the control area.This method is simple and practical,can not only achieve satisfactory results,but also have certain robustness.The experimental result shows some practical significance for school-related departments to understand and grasp the classroom teaching circumstances.

关 键 词：视频监控 目标跟踪 位移建模 人数统计 

分 类 号：TP339[自动化与计算机技术—计算机系统结构]